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Consider the table ‘empsal’. ID Salary Dept Q101 54000 10 Q103 67000 20 Q105 75000 20 Q109 NULL 30Read the following two commands carefully:i. select COUNT(salary) from empsal; ii. select COUNT(*) from empsal;Choose the correct option: a. Both i and ii will give the same output as 3. b. The output of i is 3 and the output of ii is 4. c. Both i and ii will give the same output as 4. d. The output of i is 4 and the output of ii is 3. |
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Answer» Correct option: b. The output of i is 3 and the output of ii is 4. |
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